Error message importing MDL from Substance Designer to Unreal

[yoshih50296416]

Hello,

we have made several mdls in Substance Designer based on scanned textures. If we test these mdls in Unreal, we always get the message: 

Failed to import ....mdl
Failed to create asset ...

No materials are present in the MDL!

Has anybody an idea ?

[Shwetha23063442qtvs]

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